Mathematics, 11.02.2020 03:44 alexdub3438

4) 20x + 16 y=-8
- 10x - 8y=8

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4) 20x + 16 y=-8
- 10x - 8y=8...

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4) 20x + 16 y=-8 - 10x - 8y=8

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4) 20x + 16 y=-8
- 10x - 8y=8